.add {
  width: 100em;
  height: 100em;
}
.back_title {
  margin-top: 20px;
  margin-left: 15px;
  float: left;
}
.clearfix::before,
.clearfix::after {
  content: "";
  display: table;
  clear: both;
}
.add_form{
  padding-top: 100px;
}
